About the Authors

Vladimir Y. Lugovtsev

vladimir.lugovtsev@fda.hhs.gov

Affiliation Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America

Darya Melnyk

Affiliation Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America

Jerry P. Weir

Affiliation Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VL. Performed the experiments: DM VL. Analyzed the data: VL JW. Contributed reagents/materials/analysis tools: JW VL. Wrote the paper: VL JW.